Glossary Term
get_post_custom_keys()
3 tags
1 category
get_post_custom_keys() — Retrieves meta field names for a post. If there are no meta fields, then nothing (null) will be returned.
Inputs: $post_id (int): Optional. Post ID. Default is the ID of the global $post.
Returns array|null: Array of the meta field keys, if retrieved. Null if the post has no post meta, or if the post meta could not be retrieved. A key which is a numeric string is returned as the equivalent integer.
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